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part; portion; share
amount; worth (as in "two days' worth"); enough (for)
one's means; one's place; one's lot; one's social position
one's duty; one's part
condition; state (of affairs); extent; rate (as in "at this rate")
in proportion to; just as much as; to the same degree
content (e.g. alcohol); percentage
equivalent to (e.g. an old brother)
「分」 has other readings with different meanings.
このケーキの一分をあげるよ。
I'll give you a portion of this cake.
二日分の食料を買い込んだ。
I stocked up on two days' worth of food.
自分の分は自分で払ってくれる?
Will you pay for your own portion?